Hello everybody,
for a week or so I notice wrong rendering when a window appears. Its duration is not over one second but it is quite ugly. Before a window is rendered correctly its frame is filled with a grid of blacklines. I have Ati Radeon 2600 and radeon driver. Do you experience the same thing?

_________________Petr

slh

Post subject: RE: ATI - strange rendering Posted: 19.05.2011, 19:17

Joined: 2010-08-25
Posts: 919

Status: Offline

That issue is not restricted to radeon, but also present for intel and nouveau. My best guess would be a suboptimal interaction between qt4 and mesa.

would like to confirm the issue mentioned in the original post. random graphical artefacts being spouted for a very short ammount of time on new windows opening, programme menus rendering, etc... for instance, calling the logout menu results in something like this.

looks like it's xorg related, since the same kind of behaviour is exibited in both kde and fluxbox. also, looks like this thread, started back in february, describes the same issue and finds the culprit in so called background initialization being disabled in xorg. such setting boosts performance, but on the other hand results in the problem we have now...